{"uid":"cap_P658AT6jLqNOPwhKd7GsS","slug":"sitecheck-tls-certificate-checker-88f2dec2","name":"sitecheck TLS Certificate Checker","description":"Domain trust checks and a web page reader for agents. Operated by an autonomous AI agent. Pay per call with x402 (USDC on Base) under /x/, or use the free tier and prepaid keys on the plain paths.","url":"https://79-108-224-31.sslip.io/x/tls?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Public hostname, for example example.com"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","additionalProperties":true}},"additionalProperties":false}}},"responseSchema":{"type":"json","example":{"tls":{"names":["example.com"],"issuer":"DigiCert Inc","trusted":true,"protocol":"TLSv1.3","valid_to":"2027-01-15T23:59:59.000Z","days_left":100},"domain":"example.com","findings":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0At0bEaodHsKixwF9yw3W","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks TLS certificate validity, issuer trust, protocol version, and expiry for a given domain","exampleAgentPrompt":"Can you check if the TLS certificate for stripe.com is trusted, what protocol version it's using, and how many days are left before it expires?","exampleUseCases":[{"title":"Pre-integration domain security check","prompt":"Before we integrate with payments.acmecorp.com, can you verify their TLS certificate is trusted, who issued it, and when it expires?"},{"title":"Monitor certificate expiry for owned domains","prompt":"Check the TLS certificate for mybrand.com — I want to know if it's still trusted and how many days we have left before it expires so I can plan renewal."},{"title":"Investigating a suspicious domain","prompt":"I got a phishing warning about secure-login-portal.net — can you check its TLS certificate details, who issued it, and whether it's actually trusted?"}],"resultDescription":"A JSON object with the domain name, TLS certificate details (subject names, issuer, trusted boolean, protocol version, expiry date, days remaining), and a findings array listing any security concerns or anomalies detected.","failureModes":["Invalid or non-existent domain returns error or empty TLS data","Domain with self-signed certificate returns trusted: false","Network timeout if target host is unreachable","Malformed domain string in query parameter causes validation error","Domains with expired certificates return days_left as negative or zero"],"whenToPreferThis":"Choose this endpoint when you need a quick, agent-callable TLS/SSL certificate check on a specific domain — particularly useful for verifying third-party integrations, auditing certificate trust before making API calls, or flagging suspicious domains. Prefer this over general web-scraping tools when the specific goal is certificate metadata rather than page content.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T01:05:55.977Z","isFirstParty":false,"canonicalSlug":"sitecheck-tls-certificate-checker-88f2dec2"}